PFNGLGETTEXTUREPARAMETERIIVEXTPROCDart typedef
        PFNGLGETTEXTUREPARAMETERIIVEXTPROCDart =
     void Function(int texture, int target, int pname, Pointer<Int32>  params)
    
    
    
Implementation
typedef PFNGLGETTEXTUREPARAMETERIIVEXTPROCDart =
    void Function(int texture, int target, int pname, Pointer<Int32> params);